Liquid pipe coupling universal joint



FIG. 1 is a perspective view of the liquid pipe coupling universal joint showing my new design;

FIG. 2 is a front view of the liquid pipe coupling universal joint of FIG. 1;

FIG. 3 is a plan view of the liquid pipe coupling universal joint of FIG. 1;

FIG. 4 is a bottom view of the liquid pipe coupling universal joint of FIG. 1;

FIG. 5 is a right side view of the liquid pipe coupling universal joint of FIG. 1; and,

FIG. 6 is a left side view of the liquid pipe coupling universal joint of FIG. 1. 

CLAIM The ornamental design for the liquid pipe coupling universal joint, as shown and described. 